Matter 46. a) Selfing out of monosomic herbs build nullisomics. b) In a genuine diploid both monoploid and you will haploid chromosome number is same. c) A vehicle triploids can be produced artificially of the crossing ranging from haploid and an effective diploid. d) A boost in what amount of chromosome kits might have been an enthusiastic important factor regarding provider of brand new bush species.
a) (i) C (ii) D (iii) B (iv) A-b) (i) B (ii) C (iii) D (iv) A-c) (i) C (ii) B (iii) Good (iv) D d) (i) D (ii) C (iii) A (iv) B Respond to d) (i) D (ii) C (iii) An excellent (iv) B
Question 58
Matter forty-eight. Whenever red-eyed girls Drosophila try entered that have light eyed men, brand new FI offsprings could be an effective) Female is having white-eye and you will people is actually having red eye. b) Men was having red-eye and you will lady is with yellow eye. c) Both males and females are that have red eye d) Both males and females was which have white eye. Answer: c) Both men and women is having red-eye
Matter 49. a) All organisms and this has 2 or more first sets of chromosomes derived from a few various other specie’s. b) He’s four otherwise six copies of its very own genome – triggered of the increasing of one’s diploid species. c) They can be produced by inter-certain crosses and you may fertility are recovered by chromosome doubling which have colchicine cures. d) He or she is molded anywhere between closely related variety only.. Answer: b) They have five or six copies of its very own genome – created of the increasing of your diploid kinds.
Matter fifty. a) Thev can be made forcibly bv crossing between autotetraploid diploid. b) He or she is highly fertile because of plethora of gametes. c) Developed triploid apples is actually seedless having big fruit than just diploid. d) Popular doob mix is an organic autotriploid. Answer: b) He is highly fertile because of great number of gametes.
Concern 51. a) They take place in germinal cells during gametogenesis. b) Take place while in the Pachytene county of prophase We off meiosis.. c) It is directly proportional towards volume regarding recombination between the two. d) This has common thickness has high importance. Answer: c) It’s truly proportional on volume out of recombination between them.
Matter 55. a) Deletions exist because of toxins, drugs rays. b) Based on area of damage to the chromosome it’s divided into Terminal deletion inter calary deletion c) Big deletions features evolutionary significance. d) Deletions is actually registered within the Drosophila Maize Respond to: c) Huge deletions provides evolutionary significance.
Question 56. How do we reverse the latest infertility off FI hybrid? a) Genetic Systems b) https://datingranking.net/cs/the-league-recenze/ Protoplasmic fusion c) Created Mutation d) Caused chromosomal aberration Respond to: d) Triggered chromosomal aberration
Question 57. If the haploid number into the a mobile is actually 23. The fresh new twice monosomic and pentasomy matter might be a) 44 and 44 b) 17 and you may 34 c) 47 and you may 46 d) forty five and you will 48 Answer: a) forty two and you will forty-two
Answer: b) (A) is correct, (R) ‘s the proper explanation (A)
Genetics receive personal along with her for a passing fancy chromosome and you can passed down along with her represented due to the fact a good) connected family genes b) unlinked gene c) syntenic genes d) trans family genes Respond to: a) connected genetics
Question 59. Assertion (A): Arabidopsis plant chromosomes convey more repeats out of TTT nucleotide sequences for the the telomeres. Reasoning (R) : Limit endonuclease enzyme is employed regarding the creation from nucleotide sequence (Telomeres) mui a great) (A) are incorrect, (R) is right b) (A) is right, (R) is the proper factor (A) c) (A) is right, (R) is the wrong explanation (A) d) (A) and you may (R) was completely wrong.
